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Audio and Video Talk
Valves / Vacuum Tubes
Anybody use 6v6 tube amps perhaps?
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<blockquote data-quote="Ampdog" data-source="post: 857479" data-attributes="member: 144"><p>6F6: Yaaaah .... mmmmm. Pentode, 10W anode dissipation, 0,7A heater. Pentode valve of olden days.</p><p></p><p>6K6GT: Heater current only 0,4A, Pa = 8,5W only. Pentode, mostly used in old car radios.</p><p></p><p>Both valves inefficient compared to 6V6GT which is a beam valve, which started dominating the scene soon after its introduction way back. 6V6 can be moderately abused when well ventilated. I made a few 12W amplifiers in the day, popular then, can best be used in U.L. with 25% screen taps. </p><p></p><p>(Not trying to show off knowledge, simply often encountered in<em> the days.</em> 'REX' 'potted' Jap OPTs with 25% screen taps plentiful then. I still have a model here somewhere. Popular valve complement: 2 x 6V6GTs, 6SL7, 6SJ7 and occasionally another 6SL7 as pre-amp/tone control etc. 6X5 rectifiier, later Si diodes. A number built by us students - ER! when we were taking off from studying, that is .... ;D)</p><p></p><p></p><p>P.S.: OOPS! Sorry; did not notice I replied already - usual reason ...</p></blockquote><p></p>
[QUOTE="Ampdog, post: 857479, member: 144"] 6F6: Yaaaah .... mmmmm. Pentode, 10W anode dissipation, 0,7A heater. Pentode valve of olden days. 6K6GT: Heater current only 0,4A, Pa = 8,5W only. Pentode, mostly used in old car radios. Both valves inefficient compared to 6V6GT which is a beam valve, which started dominating the scene soon after its introduction way back. 6V6 can be moderately abused when well ventilated. I made a few 12W amplifiers in the day, popular then, can best be used in U.L. with 25% screen taps. (Not trying to show off knowledge, simply often encountered in[i] the days.[/i] 'REX' 'potted' Jap OPTs with 25% screen taps plentiful then. I still have a model here somewhere. Popular valve complement: 2 x 6V6GTs, 6SL7, 6SJ7 and occasionally another 6SL7 as pre-amp/tone control etc. 6X5 rectifiier, later Si diodes. A number built by us students - ER! when we were taking off from studying, that is .... ;D) P.S.: OOPS! Sorry; did not notice I replied already - usual reason ... [/QUOTE]
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Audio and Video Talk
Valves / Vacuum Tubes
Anybody use 6v6 tube amps perhaps?
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